... In a research borehole near Dallas, Texas, a 235’ (71.62m) thick succession containing the positive carbon isotope (δC13) excursion associated with the Cenomanian/Turonian Boundary Event (CTBE) is present. More remarkably, based on nearby ammonite work by Kennedy (1988), the portion of the CTBE...

... association annual logging symposium dataset machine learning high resolution fast inversion borehole boundary artificial intelligence ml-based deconvolution method exploration geophysicist applied geoscience ML-based Deconvolution Method for High Resolution Fast Inversion of Induction Log Data...

... gamma-ray counts, the capture gamma-ray count ratio and inelastic gamma-ray count ratio from different detectors, a new characterization of the fast neutron cross-section can achieve self-compensation under borehole gas-bearing and the complex completion. Note: This paper was accepted...

... The time domain electromagnetic method using magnetic source and electrical source in borehole is studied by numerical simulation. The results show that the borehole time-domain electromagnetic measurement through the magnetoelectric mixed emission and reception mode can effectively solve...

... In this paper we revisit a very specialized borehole acoustic computational method to compute the fundamental wave types (head waves and borehole guided modes) that make up the full waveform. This opposed to the Real Axis Integration (RAI) method which only yields the sum of these constituents...

... Borehole guided waves (tube waves) are dominant acoustic waves in borehole seismic data. Tube waves can be exploited to characterize the hydraulic properties of fractures intersecting the borehole. Several theoretical tube-wave generation models have been proposed earlier in order to link...

... Heterogeneous elastic property variation in the rock formation surrounding a borehole can cause wave scattering in the borehole acoustic waveforms, which in turn can be used to characterize the formation heterogeneities. Considering the elastic wave scattering caused by the variation of the near...

... In a well drilled in the DOE FORGE Geothermal test site both electrical borehole scans acquired using Schlumberger’s Formation Micro-scanner Image tool (FMI) and Stoneley waves generated by a borehole sonic tool are used together in a workflow using the strengths of both techniques...

... require a comprehensive understanding of ground conditions for design. upstream oil & gas society borehole investigation exploration geophysicist applied geoscience refraction microtremor survey multidisciplinary site investigation american association constraint international energy...

... The development of unconventional resources requires accurate delineation of formation stiffness along extended horizontal borehole segments. This paper studies the feasibility of prediction of rock stiffness using drilling parameters recorded at the rig, downhole measurements while drilling...

... seismic data and geotechnical data are boreholes to provide time-depth relationships. acquired. These acquisitions are also repeated over time for site monitoring purposes. These data have to be processed, In a typical wind farm site assessment workflow, empirical interpreted and integrated. Due...

... CO 2 storage is expected to expand rapidly in the future. It will be associated with the need to monitor the CO2 plume extension and guarantee the reservoir integrity. The number of borehole monitoring wells will be limited. It is critical for the industry to develop the proper tools to allow...

... assumed either wireline logging (WL) or logging-while-drilling (LWD) tool in a borehole for data acquisition to combinations of several different eccentricity and tilt conditions to investigate the dispersion properties. Our exhaustive study found the following remarks. The eccentricity has a dominant...

... signature to the development of a brine leakage pathway associated with the fault hydromechanical reactivation. This time-lapse seismic system includes 24 sources and 44 receivers in five monitoring boreholes situated on either side of the fault. The temporal resolution of this system is <8 min, allowing...

... Two walkaway DAS-VSP lines, zero offset VSP, offset VSP and two 2D 3C surface seismic lines data were acquired simultaneously using the borehole TF-02 in Southwest Oilfield of CNPC at Southwest China in order to perform the enhanced borehole-driven 3D surface seismic data processing and map...

... on both radial and transversal components. The S-wave theoretically that S-waves are generated by energy sources source static correction is required, and no standard method inside a borehole. A pattern of radiation is obtained, which is available. A couple of experiments to this purpose were depends...

...Presence of an intense reflector at 2.8 km depth revealed by the enhanced borehole DAS seismic study in the Ohnuma Geothermal field in Honshu, Japan Junzo Kasahara*, Yoko Hasada, and Haruyasu Kuzume, ENAA; Hitoshi Mikada, Kyoto Univ; and Yoshihiro Fujise, WELMA Co. Summary of the geothermal field...

... characteristics of two coil systems under the Based on the transient electromagnetic method theory, the condition of transverse and longitudinal conductivity borehole time domain electromagnetic technology realizes the "far-field detection" of electromagnetic logging through changes. In 2000, Zhou proved...

...Analysis of borehole radar logging signal using Short-Time Fourier Transform Chunguang Ma*, Jianjian Huo, Ruilong Song, Yong Luo University of Electronic Science and Technology of China (UESTC), Chengdu, Sichuan, China. Summary particularly sensitive to formation relative permittivity...

...Reinterpreting AEM anomalies for brine plumes using ERT and borehole constrained inversions Landon Woods*, Alastair McClymont, Paul Bauman, BGC Engineering Inc.; Randy Brehm, Nutrien Ltd.; Colin Miazga, Randy Shinduke, and Max Layton, BGC Engineering Inc. Summary information necessary to constrain...